The Valve,safety Relief, cataloged under National Stock Number 4820-01-281-5160, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (CAGE 60047) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-281-5160 |
| Primary Part Number | WC-00194-20D9RV |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| WC-00194-20D9RV PRIMARY | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
| WE-00194-20HRGW1 ITEM 13 | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
| Reference | Meaning |
|---|---|
| WC-00194-2009RV | 5/9 Secondary reference Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| WE-00194-20HRGW1 | D/9 Drawing number reference only Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
NSN 4820-01-281-5160 is a Valve,safety Relief, manufactured by Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-281-5160 has 2 manufacturer part numbers on file: WC-00194-20D9RV (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div), WE-00194-20HRGW1 ITEM 13 (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-331-2948. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.